Fill the grid with tetrominos (4-units) in the colors red, blue and yellow. Tetrominos of the same color can only touch on the corners. An orange line is between a red and a yellow cell, a green line between a yellow and a blue cell. A purple line is between a blue and a red cell.

Celery root is one of the nine components of the Neinerlaa, the traditional meal on Christmas Eve in the Erzgebirge. Usually it is served as a salad. Celery has as each of the nine components of the Neinerlaa a meaning, it should provide for the blessing of children. In our case, the celery has produced sextuplets. So six puzzle species are combined in our puzzle.

Fill out the grid with tetrominoes (4-units) in the colors red, blue and yellow. Tetrominoes of the same color can touch each other only on the corners.

Pastel Garden: The red, yellow and blue arrows indicate which is the color of the next tetromino in the specified direction.

Don't Arrows: The black arrows are banning arrows. In direction of the arrow the color of the cell with the arrow may not occur again.

Colorful Borders: An orange line is between a red and a yellow cell, a green line between a yellow and a blue cell. A purple line is between a blue and a red cell.

Kinshi: The tetrominoes on the edge indicate a tetrominos that you can not see in the row or column. You can also see no part of it. The tetrominos on the edge could be rotated, but not be mirrored.

Color square: The colored squares on the edge indicate the color of the first square (2x2 tetromino) in the column or row.

Divide the grid into areas of 4 cells and color them with the colors red, blue and yellow. Areas of the same color may only touch each other at the vertexes. The color on the borders is the color that comes if we mix the colors of the neighbouring cells. Here red and blue becomes purple, red and yellow becomes orange and yellow and blue becomes green.